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Duplex construction
Duplex construction, built for the next development.
Duplexes are the developer sweet spot — but only if the structural programme cooperates. CoGrid handles two-storey duplex chassis as a repeat unit, with the same crew across the whole estate.
Duplex construction is one of the strongest-growing segments in Australian residential. Search demand for duplex builders has surged year on year as developers and infill operators target sites where two dwellings fit where one used to.
The constraint on duplex programmes is structural cost and trade availability. Conventional framing for two-storey dual-occupancy ties up the same scarce trades you'd use on a single home, doubled. Cranes, formwork carpenters, structural engineers — all on the critical path, all expensive.
CoGrid takes structural cost down by up to 40% and removes crane and welder dependencies entirely. The same chassis spec runs across every duplex in your programme — same parts, same documentation, same build crew. For developers running multi-site duplex rollouts, that's programme certainty across the whole pipeline.
- Two-storey duplex chassis on the standard CoGrid system
- Repeatable across multi-site developer programmes
- Up to 40% lower structural cost vs. conventional framing
- No cranes, no welders — accessible to standard residential crews
- Compatible with party-wall fire and acoustic detailing
Frequently asked
Common questions about duplex construction.
Can CoGrid do attached duplexes (party wall)?
Yes — the chassis handles the structural side; party-wall acoustic and fire detailing follows your standard residential spec. We can advise on integration with common wall systems.
Is it better for villas or attached duplexes?
Both work. The chassis configures equally well for two detached dwellings sharing a site (villa style) or attached duplexes sharing a party wall.
Related sectors
See how this fits across CoGrid's sector configurations.
Duplex construction
Brief us on your duplex programme
Send us a typical site plan and unit count. We'll come back with chassis economics across the programme.